College;
of;
Chemistry;
and;
Materials;
Science,;
Anhui;
Key;
Laboratory;
of;
Functional;
Molecular;
Solids,Anhui;
Key;
Laboratory;
of;
Molecular;
Based;
Materials,;
Anhui;
Normal;
University,;
Wuhu;
241000,;
P.;
R.;
China;
Knoevenagel反应; 乙二醇; 哌嗪; 催化剂制备; 应用; 合成; 乙酰乙酸乙酯; 丙二酸二乙酯;